Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2133701No factors below 268
P-1
B1=2 500 000
B2=125 000 000
LL
StatusDateUserResidueShift
Verified1997-11-12Herb Savage25A47D932FC947E50
Verified1999-02-14Ken Kiefer25A47D932FC947E51192523
Verified2018-04-06kkmrkkblmbrbk25A47D932FC947E5789504
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2020-02-11PageFaultfactor ECM small0.0 % 2020-02-112020-04-11
History
DateUserTypeResult
2019-04-22TJAOINFno factor from 2^67 to 2^68
2018-04-06kkmrkkblmbrbkC-LL25A47D932FC947E5
2017-10-02mikrNF-PM1B1=2500000, B2=125000000, E=12
2017-09-13Jocelyn LaroucheNF-PM1B1=504000, B2=5040000, E=6
2017-08-30Jocelyn LaroucheNF-PM1B1=420000, B2=4200000, E=6
2016-10-29Gordon SpenceNFno factor from 2^66 to 2^67
2016-06-29Jocelyn LaroucheNF-PM1B1=210000, B2=6090000, E=12
2016-02-23Mark RoseNFno factor from 2^58 to 2^60
2015-12-27ramgeisNFno factor from 2^65 to 2^66
2015-03-15VictordeHollanderNFno factor from 2^64 to 2^65
2015-03-15VictordeHollanderNFno factor from 2^63 to 2^64
2013-09-07ramgeisNFno factor from 2^62 to 2^63
2012-04-15Sebastian HornbostelNFno factor from 2^61 to 2^62
2011-01-23James HeinrichNF-PM1B1=140000, B2=3045000, E=6
2011-01-12Jocelyn LaroucheNF-PM1B1=50000
2009-01-04Sturle SundeNFno factor from 2^60 to 2^61
1999-02-14-Anonymous-C-LL25A47D932FC947E5
1999-01-29-Anonymous-NFno factor to 2^58
1997-11-12-Anonymous-NFno factor to 2^57
1997-11-12-Anonymous-C-LL25A47D932FC947E5